Structural Configuration of the Otates Fault
During the great 3 May 1887 Sonoran earthquake (surface-rupture endto- end length: 101.8 km; MW 7:5 ± 0:3), an array of three north–south-striking Basin and Range Province faults (from north to south: Pitáycachi, Teras, and Otates) slipped along the western margin of the Sierra Madre Occidental Plateau of northern Mexico. This detailed field survey of the previously undocumented 1887 earthquake rupture zone along the Otates fault includes mapping the rupture scarp and measurements of surface deformation at 25 sites
Suter, M., 2008. Structural configuration of the Otates fault (Southern Basin and Range Province) and its rupture in the 3 May 1887 M 7.5 Sonora, Mexico, earthquake: Bulletin of the Seismological Society of America, v. 98, p. 2879-2893.
The Forest Service will host its remaining two public meetings in Queen Valley on October 8 and in Tempe on October 10.
Video & Materials
A video presentation – the same information introduced at each public meeting – as well as meeting materials (posters and newsletter) are available for public review.
Draft EIS Released
The Draft Environmental Impact Statement (DEIS) for the Resolution Copper Project and Land Exchange is now available for review under the 'EIS Info' tab.
Comment on DEIS
Optional ways to comment on the Draft EIS are located under the 'EIS Info' and the 'Public Involvement' tabs.